Quake 4

Cheats List
Create a shortcut to the Quake4 executable and edit the shortcut's command line with the suffix +set com_allowConsole 1 to enable the console. Note if the command line uses quotations, add the suffix outside of the quotes.

While playing, press CTRL + ALT + ~ to drop the console (or just tilde) and enter the codes as you like:

god ... Invulnerability
undying ... Player stops taking wounds at 1 health
noclip ... Clipping toggle
give all ... Stocks all weapons and items
give armor ... Stocks body armor
give health ... Stocks life/health
give ammo ... Stocks ammunition
Spawn ... Spawn command used in conjunction with a target

* Spawn weaponmod_hyperblaster_bounce2
* Spawn weaponmod_lightinggun_chain
* Spawn weaponmod_machinegun_ammo
* Spawn weaponmod_nailgun_power
* Spawn weaponmod_nailgun_seek
* Spawn weaponmod_nailgun_rof
* Spawn weaponmod_nailgun_ammo
* Spawn weaponmod_railgun_penetrate
* Spawn weaponmod_rocketlauncher_burst
* Spawn weaponmod_rocketlauncher_homing
* Spawn weaponmod_shotgun_ammo

listcmd ... List all documented commands
listcvar ... Dsiplay all cvars
listentities ... Display all Q4 entities
listmonsters ... Display all Q4 monsters/enemies

Submitted by Charles Presley
Cheat: Level - Skip Commands

* airdefense1: Air Defense Base (beginning of game)
* airdefense2: Air Defense Trenches
* convoy2: Aqueducts
* convoy2b: Aqueducts Annex
* convoy1: Canyon
* walker: Construction Zone
* network2: Data Networking Security
* network1: Data Networking Terminal
* process2: Data Processing Security
* storage2: Data Storage Security
* dispersal: Dispersal Facility
* process1: game/process1
* storage1: game/storage1
* hangar1: Hangar Perimeter
* hangar2: Interior Hangar
* mcc_landing: MCC Landing Site
* core1: Nexus Core
* hub2: Nexus Hub
* hub1: Nexus Hub Tunnels
* mcc_1 Operation: Advantage
* mcc_2 Operation: Last Hope
* building_b: Perimeter Defense Station
* putra: Putrification Center
* recomp: Recomposition Center
* medlabs: Strogg Medical Facilities
* core2: The Nexus
* tram1: Tram Hub Station
* tram1b: Tram Rail
* waste Waste: Processing Facility